feat: Complete fleet — 94 skills across 10+ domains

Pulled ALL skills from 15 source repositories:
- anthropics/skills: 16 (docs, design, MCP, testing)
- obra/superpowers: 14 (TDD, debugging, agents, planning)
- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
- vercel-labs/agent-skills: 5 (React, design, Vercel)
- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills/tsdown/references/option-config-file.md

@@ -0,0 +1,281 @@
+# Configuration File
+
+Centralize and manage build settings with a configuration file.
+
+## Overview
+
+tsdown searches for config files automatically in the current directory and parent directories.
+
+## Supported File Names
+
+tsdown looks for these files (in order):
+- `tsdown.config.ts`
+- `tsdown.config.mts`
+- `tsdown.config.cts`
+- `tsdown.config.js`
+- `tsdown.config.mjs`
+- `tsdown.config.cjs`
+- `tsdown.config.json`
+- `tsdown.config`
+- `package.json` (in `tsdown` field)
+
+## Basic Configuration
+
+### TypeScript Config
+
+```ts
+// tsdown.config.ts
+import { defineConfig } from 'tsdown'
+
+export default defineConfig({
+  entry: ['src/index.ts'],
+  format: ['esm', 'cjs'],
+  dts: true,
+  clean: true,
+})
+```
+
+### JavaScript Config
+
+```js
+// tsdown.config.js
+export default {
+  entry: ['src/index.ts'],
+  format: ['esm', 'cjs'],
+  dts: true,
+}
+```
+
+### JSON Config
+
+```json
+// tsdown.config.json
+{
+  "entry": ["src/index.ts"],
+  "format": ["esm", "cjs"],
+  "dts": true
+}
+```
+
+### Package.json Config
+
+```json
+// package.json
+{
+  "name": "my-library",
+  "tsdown": {
+    "entry": ["src/index.ts"],
+    "format": ["esm", "cjs"],
+    "dts": true
+  }
+}
+```
+
+## Multiple Configurations
+
+Build multiple outputs with different settings:
+
+```ts
+export default defineConfig([
+  {
+    entry: 'src/index.ts',
+    format: ['esm', 'cjs'],
+    platform: 'node',
+    dts: true,
+  },
+  {
+    entry: 'src/browser.ts',
+    format: ['iife'],
+    platform: 'browser',
+    globalName: 'MyLib',
+    minify: true,
+  },
+])
+```
+
+Each configuration runs as a separate build.
+
+## Dynamic Configuration
+
+Use a function for conditional config:
+
+```ts
+export default defineConfig((options) => {
+  const isDev = options.watch
+
+  return {
+    entry: ['src/index.ts'],
+    format: ['esm', 'cjs'],
+    minify: !isDev,
+    sourcemap: isDev,
+    clean: !isDev,
+  }
+})
+```
+
+Available options:
+- `watch` - Whether watch mode is enabled
+- Other CLI flags passed to config
+
+## Config Loaders
+
+Control how TypeScript config files are loaded:
+
+### Auto Loader (Default)
+
+Uses native TypeScript support if available, otherwise falls back to `unrun`:
+
+```bash
+tsdown # Uses auto loader
+```
+
+### Native Loader
+
+Uses runtime's native TypeScript support (Node.js 23+, Bun, Deno):
+
+```bash
+tsdown --config-loader native
+```
+
+### Unrun Loader
+
+Uses [unrun](https://gugustinette.github.io/unrun/) library for loading:
+
+```bash
+tsdown --config-loader unrun
+```
+
+**Tip:** Use `unrun` loader if you need to load TypeScript configs without file extensions in Node.js.
+
+## Custom Config Path
+
+Specify a custom config file location:
+
+```bash
+tsdown --config ./configs/build.config.ts
+# or
+tsdown -c custom-config.ts
+```
+
+## Disable Config File
+
+Ignore config files and use CLI options only:
+
+```bash
+tsdown --no-config src/index.ts --format esm
+```
+
+## Extend Vite/Vitest Config (Experimental)
+
+Reuse existing Vite or Vitest configurations:
+
+```bash
+# Extend vite.config.*
+tsdown --from-vite
+
+# Extend vitest.config.*
+tsdown --from-vite vitest
+```
+
+**Note:** Only specific options like `resolve` and `plugins` are reused. Test thoroughly as this feature is experimental.
+
+## Workspace / Monorepo
+
+Build multiple packages with a single config:
+
+```ts
+export default defineConfig({
+  workspace: 'packages/*',
+  entry: ['src/index.ts'],
+  format: ['esm', 'cjs'],
+  dts: true,
+})
+```
+
+Each package directory matching the glob pattern will be built with the same configuration.
+
+## Common Patterns
+
+### Library with Multiple Builds
+
+```ts
+export default defineConfig([
+  // Node.js build
+  {
+    entry: ['src/index.ts'],
+    format: ['esm', 'cjs'],
+    platform: 'node',
+    dts: true,
+  },
+  // Browser build
+  {
+    entry: ['src/browser.ts'],
+    format: ['iife'],
+    platform: 'browser',
+    globalName: 'MyLib',
+  },
+])
+```
+
+### Development vs Production
+
+```ts
+export default defineConfig((options) => ({
+  entry: ['src/index.ts'],
+  format: ['esm', 'cjs'],
+  minify: !options.watch,
+  sourcemap: options.watch ? true : false,
+  clean: !options.watch,
+}))
+```
+
+### Monorepo Root Config
+
+```ts
+// Root tsdown.config.ts
+export default defineConfig({
+  workspace: 'packages/*',
+  entry: ['src/index.ts'],
+  format: ['esm', 'cjs'],
+  dts: true,
+  clean: true,
+  // Shared config for all packages
+})
+```
+
+### Per-Package Override
+
+```ts
+// packages/special/tsdown.config.ts
+export default defineConfig({
+  entry: ['src/index.ts'],
+  format: ['esm'], // Override: only ESM
+  platform: 'browser', // Override: browser only
+})
+```
+
+## Config Precedence
+
+When multiple configs exist:
+
+1. CLI options (highest priority)
+2. Config file specified with `--config`
+3. Auto-discovered config files
+4. Package.json `tsdown` field
+5. Default values
+
+## Tips
+
+1. **Use TypeScript config** for type checking and autocomplete
+2. **Use defineConfig** helper for better DX
+3. **Export arrays** for multiple build configurations
+4. **Use functions** for dynamic/conditional configs
+5. **Keep configs simple** - prefer convention over configuration
+6. **Use workspace** for monorepo builds
+7. **Test experimental features** thoroughly before production use
+
+## Related Options
+
+- [Entry](option-entry.md) - Configure entry points
+- [Output Format](option-output-format.md) - Output formats
+- [Watch Mode](option-watch-mode.md) - Watch mode configuration